"Things you MUST remember: No matter what religion you (really) are/aren't, say you're 'Jewish," the user wrote. "Why? Because, you'll get a box of Matzoh ('crackers, as some call it), a bottle of grape juice (both weekly) and, you'll get a trip to meet the Rabbi (A VERY nice man who lets you use his phone)."

Attorneys have also taken to Yelp's prison review boards, to read what critics are saying and write reviews themselves.

"I started reviewing because I needed something to kill time while I waited to see clients," said Miller, who has been a private defense lawyer in Southern California for the last 18 years. "But I think the reviews are actually helpful for bail bondsmen, attorneys, family members — a lot of people, actually."

Miller found that one facility was filled with "kind of very firmly rude staff," while another was "average" with inexperienced and power-hungry officers, the Washington Post reported. Most recently, he critiqued Orange County, Calif.'s Theo Lacy jail in January, praising the facility for its cleanliness and "very nice" deputies.

So what's an example of a "helpful" review?

"At no time did the officer violate any of my constitutional privileges and even gave me a juice box after I said I was thirsty," one inmate wrote of Arlington County Detention Facility in Virginia, "Yes, you heard right, they have juice boxes! . . . So if you’re going to get arrested, do it in Arlington County."